Loading and unloading apparatus.



APPLIUATION FILED JULY 16. 1906.

LOADING: AND UNLOADING APPARATUS.

'11 econo io ment in loading'and unloading apparatuses,

4 and particularly "relates to '2o lng osition, and for 2 5- moreclearly pointed outhereinaiter. i

` illustrated 3o of the shaft or hoisting apparatus taken on 4ou type,comprising suitable vertical standards 1 AXEL a. HOL'MN', o

PATENT OFFICE.

LOA-ome -AND "uNLoAolse Assas/true.'

Speeinoation of Appleman nea my 16.1906.. sain No. scesa?.

To all whom/ it may concern; u

p R. Hennen, a citizen of Sweden, residing atColmbus, in the county ofFranklin and State ofOhio, have invented certain new and. useful lmnproveniente in Loading and Unloading Apperratus, of which -the`following is a specificaE tion.

'My invention has relation to an improveh t improvements intheconstruction illustrated and described in -my former `patent No.763,182, dated. June 21st 1904. p

The object of my resent invention is to provide a loading 'an unloadingmechanism Aof the class referred to in said#patentf with means forautomatically opening the coal chutewhen the bucket is descending to aiill closing 'said chute when the ucket is vfilled 'and is beinelevated.

With the above and other objects in view my invention consists ofcertain detailso [construction and operation which: will be Theseobjects I accomplish in the `:nznanner in the accompanying drawings, inwhich: l l 4 Figure 1 is a central vertical sectional View line a as ofFig'. 2, Fig. .2 1s a view in elevation of a portion of one of"thehoisting shafts showing my improved ates or chute closing devices inconnection erewith, and,-Fig.\3' is a transverse section on line y y ofvFig. 2.

Similar numerals refer to similar parte throughout the several view As1n my said former construction, I em-V ploy a vertical shaft, of theelevator shaft and top cross frame pieces' 2. Extending outwardly andupwardly from one face of the shaft is a coal chute 3.

4 represents a portion of one ofthe load .carrying buckets which isdisposed within the elevating shaft and movabl supported by suitablecables 5. For the sa e of clearness in illustration, this bucket isomitted from Fig. 2l of the drawing. The bucket 4 is designed to belowered for the purpose.f loading, to a point immediately beneath theoutlet or lower end of the chute 3 and in order to insure a closure ofthe greater portion ofthe space between the bottom of the chute and thebucket, the latter is provided onv its upper :ceases raient. released myes, ieo'v.

toward said chute .and which for the sake of clearness, is not-shownFig. 3 of thel draw mg. i i. 1

At the point where the chute 3 .enters or connects withthe shaft, theadjacent stand v ards 1 are'provid-ed on their inner sides withoppositely located vertical guidewa s, there bein twov of'thse guidewaysin eac of said st'antgiards' and the. saine being indicatedat 7 and 8.-The guideway 7is formed between the inwardly projectingportion of aplate 9 which is seouredto they standard and themwardl'y projectingmember'of an angle bar.` 10 whichvis secured tothe inner face; of saidstandard; while-the' guidewayS-is formed between 'said angle bar andaframe stri 11 which is also secured'tothe inner side 0 the standard.

12 represents a gate wlnch 1s m the nature of a closure plate,- saidgate being provided at its upper and lower corners with dprojectinrotatable rollers 13 .(see ligs.4 2 an ),.whic rollers are adapted torun in the opposing guideways 7. I also. provide the upper cornerportions of the y wardly and u wardlyinc ined guide lingers or bars 14which extend igt() said grooves or 'deways 7. The ate 1 has secured toits izalde and projecting aterally therefrom past the vframe standards,bracket arms 15, with which are connected the lower ends of' cables 16,the latter running over pulleys 17 having journaledl supports from the uper frame wei hts 18. Pivotally mountedA in lugs proate y 12 with out"cross bars 2.A The ends of sai cables arev provided with suitablecounterbalancing l jectlng from the lower and central'portion of thegate 12 is the. central portion of a catch bar 19 the outer and upperend of wh1eh 1s hook-sha ed as indicated: :more clearly 1n Fig. 1 oftihe. drawing. The hookend oi the catch bar 19, is normally pressedoutward by the ree end of a spring stripA 20, the4 remaining end ofwhich 1s, secure to the gate 12.

The gate is also provided on its. inner face lwith a transverse anglebar Onv that face of the bucketA which `1s adjacent to the hereinbeforedescribed standards 1, I provide a transverse angle bar' 22. InFig. 1 ofthe drawing, I have shown the load carrying v bucket 4 supported beneaththe mouth or outlet of the chute 3 in position torecelve'a loadtherefrom. In this position itA W1ll be observed that the projeotlngmember of the bucket angle bar 22 is in contact `with thesidewith aprojecting lip 6 which extends 1 upper face of the gate angle bar 21,while the .spring pressed hopk end thecatch bar 19 1s in engagement withan inclined lug 23 which projects from the lower portion of the buckeAssuming that the bucket has been filled with coal or other materialfrom the chute 3 and that the mechanism for operating the bucket is utinto o eration, it will be seen that the e evation ol) the bucket willresult through the engagement of the catch bar 19 and lug 23 in acorresponding elevation of the gate 12. When the gate has in this mannerbeen raised until the' outlet end of the chute it will be understoodthat the rojection 22 of the bucket will contact with t e projection 21of the gate 12 and force the latter downward until the catch bar 19 isagain sprung into engagement with the lug 23.

In order to rovide positive means for closing the disc arge end of thechute in case of a failure in operation of the hereinbefore describedgate, I rovide a second or auxiliary gate of a similar character whichis indicated at 25. This auxiliary. gate as prescribed for the gate 12is provided with aterally projecting rollers which are designed to runin the guideways `8. Extending on the outer side ofthe gate 25 is thehorizontal ortion of a crank shaft 26 which is journaled) in theopposing frame standards 1. This crank shaft carries thereon a fixedpawl or `dog 27, theouter end of which is adapted to engage when saidshaft is pro erly turned, one of a series of notches 28 whic are formedone above the other in the .outer face of the gate 25, this engagementresulting in said gate 25- being su ported in an elevated position asshown in igs. 1 and 2 above the mainbody ofthe chute. The gate 25 isrovided at .its lower corners with lips 29 w lich project in the path ofthe lowerate 12, but which are out of the path of the ucket projectionA22 for the reason that thelatter has Iltis end portions cut away asindicated in case of a failure of operation of the first described gate12, it is obvious that the discharge end of the chute may be closedmanually by turning the crank shaft 26 until its pawl 27 is out ofengagementv with. the gate notches 28, thus permitting the upper gat(lto drop in front of the chute outlet. `On the next upward movement ofthe lower gate, however,it is obvious that the up er end of said lowergate will contact' with t e projections 29 ofthe upper gate and raisethe latter to its normal or elevated position, in which position it maybe retained by 'engagement with the 'pawl of the crank shaft.

From the construction and operation shown and described, it will beobserved that simple and substantial means are provided for the closingof the disehar e end of the loading chute ,when the bucket as beenfilled and for opening said chute when the'bucket is assuming thefilling position.

What I claim, is:

1.V In a device of the character described, a reciprocatin gate adaptedto open and close its outlet, ogs pivotally connected therewith, a recirocating receptacle adapted to engage the ogs, and means to move thesaid dogs out of the path of said receptacle.

2. In a device of the character described, a

reciprocating gate adapted to open and close its outlet, brackets on thegate, dogs pivotally secured to the said brackets, and a r'eciprocatingreceptacle arranged to engage.

the said dogs.

3. The combination with a shaft having loadin chute leadin(Jr therein, avertica l movab e gate adapted -to close the discharge end of said chuteby being elevated in said shaft frame, a'second gate slidably mounted inthe shaft frame and adapted when lowered to close the discharge end ofsaid chute, and means for detachably supporting said upper gate inan'elevated position, of a bucket movably supported in said shaft andadapted when elevated to carry said first mentioned lll gate to a closedposition and when lowered to move the same to an open position.

i 4. In a device ofthe character described, the combination with a suporting frame, of a vertically .movable buc et, a chute the lower end ofwhich is secured lt'o said frame, a gate whichwhen elevated closes thelower end of' said chute, means carried by the bucket for engaging thegate and depressing said gate to open the lower end of the chute as thebucket descends, pulleys mounted at the to ofthe frame, cables. whichpass over said pu leys and have one of their ends secured to the gate,and counterbalancing weights which are secured to the other ends of saidcables.

In testimony whereof I affix my signature in presence of two witnesses.

AXEL R. HOLMN. lVitnesses:

A. L. PHELPS, CARL S'roUGn'roN.

IIO

